Machine for fastening can-covers



S. A. BENNETT.

MACHINE FOR FASTENING CAN COVERS.

APPLlCATlON FILED JUNE 13, 1919.

Patented July 26, 1921.

2 SHEETS-SHEET 1.

STEVENS A. BENNETT, OI CHICAGO, ILLINOIS,

ASSIGNOR TO WILSON & BENNETT MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLI- MACHINE FOR FASTENING CAN.COVERS.

Specification of Letters Patent.

Patented July 26, 1921.

Application filed June 13, 1919. Serial No. 303,978.

To all whom it may concern:

Be it known that I, STEVENS A. BENNETT, a citizen of theUnited States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Fastening Can-Covers.

This invention relates to devices for fastening covers on cans or receptacles which have projections or parts adapted to be bent into engaging position for holding the cover.

The objects of this invention are to provide an improved device for applying covers to receptacles; to provide a device of this character which Wlll bend and crimp projections from the can into position for holding the cover; to provide means for adjusting the machine for different sized cans and to provide a machine having such advantages and novel features as will appear more fully from the following description.

In the accompanying drawings:

Figure 1 is a side view of a machine embodying this invention, with parts broken away or, shown in section for convenience in illustration;

Fig. 2 is a plan view; and,

Figs. 3 to 7 are details showing the method of bending the projections to hold the cover.

As illustrated in these drawings, 8 represents a substantial frame which is preferably mounted on wheels 9 for convenience in moving the same. This frame comprises a base 10 and an upright 11. The base has a number of adjustable guides or stops 12 for positioning the can or rece tacle 13, as indicated in dotted lines in ig. 1. An adjustable yoke or bracket 14 is mounted on a guide-way 15 at the top of the upright or post 11 and is held in position by means of bolts 16. An adjusting screw 17 passes through a lug 18 on the post and engages with the top of the yoke in order to hold .it more securely against upward movement. This yoke has a vertical bearing 19 for receiving' a sleeve 20 which in turn carries or is provided with a disk 21. This disk is provided with a ring 22, secured thereto by means of screws 23. The ring 21 has a bev-' eled shoulder 24 which serves to perform the first operation in fastening the can cover.

A shaft 25 is slidably mounted in the sleeve 20 and carries a disk 26 at its lower end, for

4 completing the 'closlng or fastening operatlon.

. ing these members. In the The disks are reciprocated or moved vertically in order to fasten the can covers and suitable means must be provided for actuatpresent instance, the yoke 14 is provided with bearings 27 for a shaft 28 which carries an actuating head 29 which is swung or rotated by means of a handle 30. This head has two cams 31 which co-act with rollers 32 mounted on the ends of a shaft 33 passing through the upper end of the sleeve 20. The shaft 25 has a slot 3 1 through which the shaft 33 passes.

The head 29 also has a transverse pin 35 for a link 36, the opposite endof this link being secured by means of a pin to the upper end of the shaft 25. The head also has an adjustable stop screw 38 for limiting the downward movement of the heading devices.

The operation of this machine will be more fully understood in connection with the figures showing the different steps in the o eration performed thereby. As shown in Pigs. 3 and 5, the can or receptacle 13 has upwardly extending projections 39 which pass through holes 40 in the cover 11 and the functions of the machine are to bend these projections inwardly and press the cover tightly to closed position. A can with the cover thereon is inserted in the machine as shown in Fig. 1 and the handle 30 is swung downwardly. This causes the cams 31 to force the sleeve 20 and parts connected therewith downwardly. The ring or die member 21 first engages with the projections 39 and presses them inwardly as shown in Fig. 6. Fig. 1 shows the parts in position at about the extreme downward movement of this ring.

The link or toggle member 36 then forces the shaft 25 still farther downwardly so that the disk or die member 26 will engage with inturned ends of the projections 39 and press them downwardly to the position shown in Figs. 4 and 7 and at the same time presses the cover closely in engagement with its seat thereby completing the fastening operation. As the handle 30 is again swung upwardly, the shaft 25 with the parts connected therewith, are first raised and then carry the other parts upwardly to original position.

It will be noted that the machine may be varied in size and proportions in order to adapt the same for different sizes of cans and also for different forms of closures and therefore, I do not wish to be limited to the exact construction herein shown and described, except as specified in the following claims in which I claim:

1. A machine for fastening can covers, comprising a die member for bending the cover holding projections on a can, and a second die member for completing the bending operation and means for actuating said die members to press the projections against the cover and simultaneously press the cover against its seat.

2. A machine of the character set forth, comprising a ring adapted to engage with fastening projections on a can for partially bending the same toward fastening position, a second member for engaging with said fastening members to bend them to fastening position against the top of the cover, and means for actuating said bending devices.

3. In a machine for fastening can covers, the combination of a support for supporting the cans during the fastening operation, a post extending upwardly from said support, a bearing member carried by said post, a vertically movable sleeve mounted in said bearing member, a bending ring carried by said sleeve, adapted to partially bend the cover holding projections to fastening position, a shaft mounted in said sleeve, a bending disk carried by said shaft adapted to finish bending said projections to fastening position, and means for reciprocating said sleeve and shaft.

4. In a machine of the character set forth, the combination of a, support for supporting "the cans during the fastening operation, an

upright extending from said support, a yoke carried by said upright, a vertically movable sleeve mounted in said yoke, a disk secured to said sleeve and having a die member at its outer edge, a shaft mounted in said sleeve, a die member carried by said shaft, a rotatable head mounted in said yoke and having cams for actuating the sleeve, said head also having a link connected to the shaft for actuating said shaft, substantially as described.

5. In a machine for fastening can covers, the combination of an annular die for partially bending the fastening devices, a sleeve carrying said die, a second die arranged within the first-named die and adapted to complete the fastening operation, a shaft carrying said second-named die, a pin passing through a slot in said shaft and secured in said sleeve, rollers on said pin, cams coacting with said rollers for pressing the sleeve downwardly, a toggle co-acting with the shaft for pressing the shaft downwardly, and means for actuating said cams and toggle.

(5. The combination of a support for a can or receptacle, guides on said support, an upright from said support, an adjustable yoke mounted on said support, a vertically arranged sleeve mounted in said yoke, a bending member carried by said sleeve, a shaft in said sleeve, a bending member carried by said shaft, a pin secured in said sleeve and passing through a slot in the shaft, a cross shaft mounted in said yoke, a head carried by said cross-shaft, and having cams for engagement with said rollers, a link connecting said head and said first-named shaft, a handle for rotating said head, and ad'ustablei stop for limiting the movement 0 the hea STEVENS A. BENNETT: 

